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When the resistance in all four are equal

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8y ago

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At what condition the voltmeter connected across the wheatstone bridge will be zero?

At a balanced condition the voltmeter connected across the wheatstone bridge will be zero.


Could a voltmeter be used in a wheatstone bridge instead of an ammeter?

Yes, of course.


Why doesn't any current flow through the galvanometer in a balanced Wheatstone bridge?

There is no current flow through the galvanometer in a balanced Wheatstone bridge because, in the balanced state, the voltage on both terminals of the galvanometer is the same. Since the voltage differential in zero, there can be no current.


What is the balanced condition of wheatstone bridge circuit?

The balanced condition of a Wheatstone bridge circuit occurs when the ratio of the resistances in one branch is equal to the ratio in the other branch, specifically when ( \frac{R_1}{R_2} = \frac{R_3}{R_4} ). Under this condition, the voltage across the galvanometer is zero, indicating no current flows through it. This balance allows for precise measurements of unknown resistances by comparing them to known resistances. The bridge circuit is often used in applications such as strain gauges and temperature sensors.


Why using wheatstone bridge in transducer?

You use a transducer in a wheatstone bridge. The wheatstone bridge allows you to find an unknown resistance.


Limitations of the wheatstone bridge?

The Wheatstone bridge can be sensitive to environmental factors like temperature changes and can be affected by resistance variations in the arms of the bridge. It requires precise resistor values for accurate measurements and can be limited in its ability to measure very small changes in resistance.


How do you obtain a null reading on wheatstone bridge?

obtaining condition p/q=r/s


Why galvanometer is connected in wheatstone bridge?

A Wheatstone Bridge is used to measure resistance of an electrical / electronic component. The galvanometer (which was used to measure voltage) has now been replaced by the Multimeter.Both are not used today.AnswerA Wheatstone Bridge has most definitely NOT been replaced by a multimeter! It uses a completely-different method of measuring resistance and is significantly more accurate than a multimeter. The purpose of the very sensitive galvanometer is to detect when the Bridge circuit is 'balanced', by sensing the current (not voltage!) passing through it. When no current flows, the Bridge is balanced.


What happens when unknown resistance is changed to other armin wheatstone bridge?

Changing the unknown resistance in a Wheatstone bridge will result in an imbalance in the circuit, causing a potential difference across the bridge. This potential difference can be used to determine the new value of the unknown resistance by adjusting other known resistances until the bridge is balanced again.


How do you troubleshoots?

with a wheatstone bridge


How does the Kelvin bridge differ from the wheatstone bridge?

kelvin's bridge is the modified version of wheatstone bridge and used to measure resistance values less than 1 ohm.


What is Wheatstone's bridge?

The wheatstone bridge is an instrument used to measure electrical resistance by means of balancing a bridge circuit. The bridge circuit contains two legs, one of which contains the unknown resistance. Variations in wheatstone bridge can be employed to measure inductance, capacitance, and impedance also.